On 10/22/15 10:26, Richard Biener wrote:
On Thu, Oct 22, 2015 at 4:01 PM, Nathan Sidwell <nat...@acm.org> wrote:
On 10/22/15 04:07, Richard Biener wrote:
Yeah, please make them either end or start a BB so we have to check
at most a single stmt. ECF_RETURNS_TWICE should achieve that,
it also makes it a code motion barrier.
Just so I'm clear, you're not saying that RETURNS_TWICE will stop the call
being duplicated though?
It will in practice. RETURNS_TWICE will get you an abnormal edge from
entry (I think)
Won't that interfere with the OMP machinery, which expects correctly nested
loops? (no in-to or out-of loop jumps)
nathan
